<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <script>
        var str = '1383138312'

        function fn(){
            var arr = str.slice('')
            // var arr1 = arr.reverse()
            console.log(arr)
            
        }
        fn()
    </script>
</body>
</html>